Check: package vignettes, Result: WARNING Located more than one 'weave' output file (by engine 'knitr::rmarkdown') for vignette with name 'Logging': 'Logging.html' (102181 bytes), 'Logging.pdf' (273291 bytes)Located more than one 'weave' output file (by engine 'knitr::rmarkdown') for vignette with name 'Parallel': 'Parallel.html' (12424 bytes), 'Parallel.pdf' (215391 bytes) Package vignettes without corresponding single PDF/HTML: 'Logging.Rmd' 'Parallel.Rmd'